JPMorgan BetaBuilders U.S. Small Cap Equity ETF (BBSC) is an exchange-traded fund that seeks investment results corresponding closely to the Morningstar US Small Cap Target Market Exposure Extended Index, a free-float adjusted, market-cap weighted benchmark targeting small-cap U.S. equity securities between the 96th and 99th percentiles of the investable universe by float-adjusted market capitalization; it employs a passive investment approach to replicate the index through direct holdings in approximately 737 small-cap stocks across sectors including financials (16.8%), industrials (18.5%), information technology (16.6%), health care (14.9%), and consumer discretionary (11.1%). The ETF offers investors diversified exposure to the U.S. small blend equity market segment, with top holdings such as Bloom Energy Corp (1.5%), Kratos Defense & Security Solutions (0.9%), and Rocket Lab USA; it maintains a low net expense ratio of 0.09%, total net assets of approximately $588 million, and a trailing 12-month turnover ratio of 20% as of October 2025. Launched on November 16, 2020, and domiciled in the United States, BBSC operates primarily in U.S. equity markets and is available for sale in the United States and Mexico; it is managed by J.P. Morgan Exchange-Traded Fund Trust under portfolio managers Nicholas D'Eramo, Michael Loeffler, and Todd McEwen. Recent developments include sustained asset growth to over $616 million amid institutional interest, with firms such as Janney Montgomery Scott LLC increasing holdings by 1.7% in Q2 2025 and JPMorgan Chase & Co. expanding its position by 12.6% in Q1 2025; the fund earned a 4-star Morningstar rating in the Small Blend category as of October 31, 2025, reflecting strong risk-adjusted performance among 569 peers.